Long table causing memory/timeout errors

Original author: mattl (July 24, 2012 21:35:46)

Steps:
Use the attached HTML (grouped_report.html) with the following PHP:

<code language="php">
...
$dompdf->load_html( $html );
$dompdf->set_paper( 'letter', 'landscape' );
$dompdf->render();
$dompdf->stream( "report.pdf", array( 'Attachment' => 0 ) );
</code>

The divided_report is placing 29 rows in a table and each table is page-break-after:always. The grouped_report has all of them in one table and it doesn't work.

Expected:
The fully rendered report.

Actual:
Variations on 30sec max execution time exceeded, tried to allocate more memory errors

Environment:
PHP 5.3.x on Apache 2.2 using PDFLib and dompdf @ r495.

Original issue: http://code.google.com/p/dompdf/issues/detail?id=522

grouped_report.txt
divided_report.txt

Start with the attached grouped_report.txt and divided_report.txt, then reproduce the issue through load_html(), set_paper(), render(), and stream() using the provided PHP example. Compare the single 29-row table with the page-broken version and inspect where rendering exceeds the memory or execution limits. Done means the grouped report renders fully without timeout or memory errors.